lowering and rasing the ph

so ya what is the best way to lower ph and keep the ph at th same level and when should i change the water and keeep the same ph at the same time...?????

Can we say run on sentences?

WOW, kinda a dick headed thing to say dude, and u didnt even try to answer his question. Anyway its a good question in my opinion... I was not sure either, so I tried a few things out.. I ended up using just a lil distilled white vinegar. Test it as u put it in as not to lower it 2 much, a lil goes a long way. I have heard using distilled water also helps, but have not tried it myself. Once I lowered it, it never seemed to jump up again. Seemed to work great for me. I used general hydroponics nutes and my ph stayed in the safe levels w/o even adding anything. Im sure my grammar and spelling are not up 2 par also baby gun dude...lol.. But really, what do u expect from a site full of pot-heads.

If anyone has any other solutions, or can tell me the pros and cons of vinegar. I would be interested on hearing them also..

i have never used vinegar but the way i do it is get ph up or down .along with a ph meter and go from there
also i would change the res every week...2 at the latest

wat this kid should do is go stick his head in his res and see how long he can take it lol complete joke i just know this guy and he takes no advice just asks like a dick and doesnt listen hes on my do not help list lol

As some one stated earlier go and buy some ph up and ph down. Next buy yourself a ph meter at that point you will be able to manage it accurately and keep it consistent.